Executing tests can take a very long time. As an example, the Git test
suite on Windows takes around 4 hours to execute. The Git project has
been working around the issue by splitting up CI jobs into multiple
slices: one job creates the build artifacts, and then we spawn N test
jobs with those artifacts, where each test job executes 1/Nth of the
tests.
This can be scripted rather easily by using `meson test --list`,
selecting every Nth line, but there may be other projects that have a
similar need. Wire up a new option "--slice i/n" to `meson test` that
does implements this logic.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
We will still try to load `meson_options.txt` if `meson.options` doesn't
exist. Because there are some advantages to using `meson.options` even
with older versions of meson (such as better text editor handling)
we will not warn about the existence of a `meson.options` file if a
`meson_options.txt` file or symlink also exists.
The name `meson.options` was picked instead of alternative proposals,
such as `meson_options.build` for a couple of reasons:
1. meson.options is shorter
2. While the syntax is the same, only the `option()` function may be
called in meson.options, while, it may not be called in meson.build
3. While the two files share a syntax and elementary types (strings,
arrays, etc), they have different purposes: `meson.build` declares
build targets, `meson.options` declares options. This is similar to
the difference between C's `.c` and `.h` extensions.
As an implementation detail `Interpreter.option_file` has been removed,
as it is used exactly once, in the `project()` call to read the options,
and we can just calculate it there and not store it.
Fixes: #11176
In msetup the two positional arguments build-dir and source-dir
are added to the argument parser in this order.
This also affects the help message.
This order is different from the order given in the man page.
Therefore it is switched around in the man page to make it consistent
with the help message.
As the code automatically decides which directory contains what, this
change is only cosmetic. Both argument orders should be valid.
Signed-off-by: Fabian Bläse <fabian@blaese.de>
Paolo Bonzini